National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

69°F

21°C

Humidity 96%
Wind Speed NW 3 mph
Barometer 30.00 in (1015.0 mb)
Dewpoint 68°F (20°C)
Visibility 9.00 mi
Last update 22 May 3:53 am EDT
Extended Forecast for

Maryville TN

  • Overnight

    Overnight: A chance of showers, with thunderstorms also possible after 5am. Cloudy, with a low around 65. Calm wind. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

  • Friday

    Friday: Showers and thunderstorms before 3pm, then showers and possibly a thunderstorm, mainly after 3pm. High near 79. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 79 °F

    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms before 5am, then showers likely. Low around 66. Southeast wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 11am. High near 81. South wind 5 to 10 mph. Chance of precipitation is 100%.

    High: 81 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 84. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 90%.

    High: 84 °F

    Showers
    Likely then
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 66. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 66 °F

    Showers

  • Memorial Day

    Memorial Day: Showers and possibly a thunderstorm. High near 81. Chance of precipitation is 90%.

    High: 81 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.

    Low: 66 °F

    Showers

Detailed Forecast

Overnight
A chance of showers, with thunderstorms also possible after 5am. Cloudy, with a low around 65. Calm wind. Chance of precipitation is 30%.
Friday
Showers and thunderstorms before 3pm, then showers and possibly a thunderstorm, mainly after 3pm. High near 79. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and thunderstorms before 5am, then showers likely. Low around 66. Southeast wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
Showers, with thunderstorms also possible after 11am. High near 81. South wind 5 to 10 mph. Chance of precipitation is 100%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Sunday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 84. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm. Low around 66. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%.
Memorial Day
Showers and possibly a thunderstorm. High near 81. Chance of precipitation is 90%.
Monday Night
Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.
Tuesday
Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 90%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday
Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.
Thursday
Showers and thunderstorms. High near 84. Chance of precipitation is 80%.
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ABOUT THIS FORECAST

 
Point Forecast:
Maryville TN
 35.74°N 83.99°W (Elev. 1001 ft)
Last Update:
2:26 am EDT May 22, 2026
Forecast Valid:
3am EDT May 22, 2026-6pm EDT May 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation